The U$.$S$.$ Social Security Administration $($SSA$)$ operates the federal government$$s social insurance program that covers $173$ million workers. There are $65$ million people receiving retirement, disability, or survivors$$ benefits from a $$920$ billion annual operating budget $($source: U$.$S$.$ Social Security Administration, www$.$ssa.gov$).$

Currently all social security tax contributions are invested in risk$-$free U$.$S$.$ Treasury bonds and bills, however under a proposed federal mandate, the SSA is launching Retirement.gov to allow workers and recipients to control how their contributions are invested. Retirement.gov would operate similar to HealthCare.gov where individuals can review and select a private sector investment management company to manage their retirement fund, similar to how private pensions, IRAs, and $401($K$)$ retirement funds operate. Retirement.gov is scheduled to launch in $24-$months. Based on this info, I understand this is going to be a major IT project where quality and security stands out as Critical Success Factor $($CSFs$).$ I am requesting with the expert to help develop value metrics for internal client $($Soc Sec Admin$),$ external customer $($like banks$),$ and end users $($like the public$).$ How can we justify these new metrics?